is there a way to get the value of a property of a object based on its name?
For example if I have:
public class Car : Vehicle
{
public string Make { get; set; }
}
and
var car = new Car { Make="Ford" };
I want to write a method where I can pass in the property name and it would return the property value. ie:
public string GetPropertyValue(string propertyName)
{
return the value of the property;
}
I got an unusual problem. The solution is most likely very simple or completely impossible. I want to dynamically select a property based on a string value. I am using LINQ which automatically creates a class for each table. The actual columns in the table become properties of the class. I need a different column based on the current culture settings as the different columns contain translations. For example, if I want to set the text of a hyperlink to English I choose the EN column as follow:
[Code]....
I want to assign a stylesheet-class to a <div> element. The cssclass I want to use depends on the property 'Level' which is defined in de ViewModel.
I want to have something like this:
<div class="dashboardlevel" + <%= Model.Level %>>
But this doen't work.
public class InvestorMailing
{
public string To { get; set; }
public IEnumerable<string> Attachments { get; set; }
public int AttachmentCount { get; set; }
public long AttachmentSize { get; set; }
}
i have an IList<InvestorMailing> mailingList. if the attachment size is greater than x, then i need to split my object into chunks. is there an easy linq-y way to do this?
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I used below code fo radiobutton to inserting data in database
string price = RadioButton2.Checked ?"1": "null";
SqlCommand _cmd = new SqlCommand("insertproduct2", _cn);
_cmd.CommandType = CommandType.StoredProcedure;
_cn.Open();
_cmd.Parameters.AddWithValue("@Price", price);
_cn.Close();
Now I use same code for checkbox I want if users checked chekbox in table insert "1"
else insert "Null" but when I wrote below code
string Off = checkbox1.Checked ? "1" : "null";
it make error Under checked attribute it didn't recognize Checked attribute here. what should i do?
I am trying to query a DB and get a list of users based on a specific boolean property stored in the aspnet_profile for that user. I am aware that it wasn't possible a few years ago [URL] but was wondering whether that had changed in recent releases, or it was still not possible without trawling through the entire list of users and testing them one by one. (My DB may become way to big for that.)
View 3 RepliesI've created a UserControl with the following public property:
[Browsable(true)]
public string Text
{
get { return pnlLookupTable.GroupingText; }
set { pnlLookupTable.GroupingText = value; }
}
pnlLookupTable is, as you may have guessed, a Panel control. I can change the value of the Text property in the Properties window and it's reflected in the markup like it should be. However, the design view of the UserControl inside a page does not show updated GroupingText for the Panel. How can I get this to happen?
EDIT:
By request, here is the entire class to which that property belongs. You can see there's nothing special going on:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
[Code]....
And here's the relevant part of the .ascx file:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="LookupTable.ascx.cs" Inherits="LookupTable" %>
<asp:Panel ID="pnlLookupTable" runat="server" GroupingText="Lookup Table">
<%-- Irrelevant content here. --%>
</asp:Panel>
I have changed some identifiers and other trivial things to protect the proprietary nature of the code.
I should also reiterate that I'm looking at a Web form in design mode that has my control added, and I'm changing the Text property. I want to see the change to the Panel's GroupingText visually in the designer.
I'm new to ASP so this may seem so simple but I cannot work it out.
I am trying to create a script that changes its output based on a range of values. Here is what I mean:
I have a MSSQL database with an ASP scripted website that reads it and displays the data in a table. One of the columns in the database is a percentage and I want that column in the web page to have a background colour based on the figure outputted.
So each cell may be a different colour. If the number is between 0 and 30 then red background, 31 to 70 orange etc.
At the moment I have the database output script looking like this:
[Code]....
How can I implement what I have outlined above?
So what I'm trying to accomplish is this
[Code]....
The user control has public properties named accordingly and the page has protected properties accordingly which I've verified have the desired values.
For some reason the values are always empty strings or 0s in the usercontrol, no matter what the page property is.
Can anyone add a complete input about how to create Parent Property with multiple child properties or in short nested properties.
Example: Style tag: which has properties like font, color, display... etc? which accept objects and its value.
[code]....
As soon as Rainbow property is typed, user should get intellisense for list of number of colors. Then accordingly user can select list of those colors and assign a value to them.
Is there any difference between accessing a property that has a backing field
private int _id;
public int Id
{
get { return _id; }
set { _id = value; }
}
versus an auto-property?
public int Id { get; set; }
The reason I'm asking is that when letting ReSharper convert a property into an auto property it seems to scan my entire solution, or at least all aspx-files.
I can't see any reason why there should be any difference between the two from outside the class. Is there?
In the Web.Config we have a timeout property. Ex:
<authentication mode="Forms">
<forms loginUrl="~/Login.aspx" timeout="2880"/>
</authentication>
When loggin in, we can specify a ticket expiry date. Ex:
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
1, id.ToString(), DateTime.Now, expiryDate, true,
securityToken, FormsAuthentication.FormsCookiePath);
Why there's two places where I can set expiration info about forms-authentication? What's the difference between them? What has more relevance?
Is it possible to use InvokeMember() of Type class to call a property of a property of a class?
[Code]....
I need to set a style property of an element to the value returned from a code-behind property. I have done this in the past, but it now seems everything I try fails. I get an error telling me that the literal is not formed correctly.These are some of the arrangements I have tried:
[Code]....
Can we write property in property?IN the page load event we have page property and we can find another page property in that page property.Pls let me know how this is happening
View 5 RepliesI have a masterpage that contains all the javascript and inside the content control, there is a link that calls a javascript function and I want to pass the id once it's rendered differently by the server.
<asp:TextBox ID="txtstart" runat="server" Width="20%"></asp:TextBox>
<a title="Pick Date from Calendar" onclick="calendarPicker('<% txtstart.ClientId %>');" href="javascript:void(0);">
However, I keep getting this error:
Property access must assign to the property or use its value.
How would I be able to accomplish this?
how can I use a Required Validation in a property Prop2 only if the Prop1 is true?
public bool Prop1 { get; set; }
[Required] // I need this validation only if the Prop1 is true.
public string Prop2 { get; set; }
I wondered what the difference between
'dbo.Property' and 'Property'
would be in an sql query
I need to develop in ASP.NET or in SilverLight a web-based editor and a web-based player for PowerPoint presentation. Are there any components I can use to do this?
View 2 RepliesI have a simple intranet site. It has a role based authorization in the web.config file.
Any user's in a specific role called as "Apr-Sales-Writers" will be authorized to use those pages. If not, they will not be authorized. So far so good. Works fine. But we added additional functionality where a new active directory group (means new role) has to be added and user's belonging to this new AD group should be given access to only specific .aspx pages on the intranet site. I am using a web.sitemap and it looks like this.
If the user's belong to say AD group "Apr-Sales-Writers", they should access only default.aspx and salesData.aspx pages. User's belonging to new AD group (which I did not include in the web.config file below), should have access to other .aspx pages.
[CODE]<?xml version="1.0" encoding="utf-8" ?>
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" >
<siteMapNode url="default.aspx" title="Home" description="Home">
<siteMapNode title="sales Data" description="sales Data">
<siteMapNode url="salesData.aspx" title="sales Data" description="sales Data" />
[Code] ....
which i added one sitemap in whcih i added all the pages n i want to retrive that sitemap in masterpage based on login in whcih suppose admin hs login then display only admin pages with sitemap n if normal user hs login then it ll display only normal user pages with sitemap. here i didn't use login control but i create login page manually.
View 1 RepliesI have an application called barcode available on a server on the web. The application is used to generate barcodes. The user is able to save her progress directly on her desktop, however though whenever the user try to load the saved progress. It is doesnt remotely connect to the server, instead, it defaults only the saved copy on her desktop. so for example
we have the following aspx created
barcoded.aspx. The barcoded.aspx is available on the server. the page has the following information
Name: PRT321-1 Code: 456789-1000
Label: 678900-001-001
Now, this information is saved as webpage.html. however though, when the user goes to the saved location and clicks on the saved copy, it automatically load the copy as a webpage and allow the user continue with the modification online but that is not the case. Does anyone know how to fix this problem.
I'm trying to convert a windows based application to a web based using vb.net.
I am having a problem with the following:
System.Windows.Forms.WebBrowser
is there any similar web calling to this?
I'm doing this:
Dim htmlbox As System.Windows.Forms.WebBrowser
But obviously im unable to do this since it's a windows.. I need to find something similar for web.
When I open an ASP.NET 3.5 project using VWD2010, I get a prompt error message,"The connection property in the web.config file is missing or incorrect.The connection string from the .dbml file has been used in its place."however, my project works successfully.
View 1 Repliesi get a list of objects from the Entity Framework data context.
var list = context.EntityA;
the EntityA is the main object (contains the primary key), but has a navigation property called "EntityALanguages", which contains language specific properties.
now i want to bind the list to a dropdownlist and need so set DataValueField and DataTextField properties from the dropdownlist.
how can i set the DataTextField to a property of a navigation property, something like:
this.ddl.DataValueField = "GUID";
this.ddl.DataTextField = "EntityALanguages.ShortDescription";